SolarBridge to Build 2.5 GW Energy Storage Converter Production Capacity in the U.S.

en.Wedoany.com Reported - On November 10, U.S. energy storage equipment company SolarBridge Technology released the Golden Gate STC-P135 bidirectional energy storage converter, with a rated AC power of 135 kW, targeting the commercial and industrial energy storage market. The company plans to build an assembly and testing production line at its Dallas, Texas manufacturing base, with local production scheduled to begin in the first quarter of 2027. The initial phase is planned for a monthly output of 1,000 to 1,500 units, with an annual production capacity target of up to approximately 2.5 GW.

The Golden Gate STC-P135 features a modular design, with a maximum AC apparent power of 148.5 kVA, supporting a DC battery voltage range of 720 to 1,500 V, and a peak conversion efficiency of 98.7%. The device supports grid-connected and off-grid operation and can maintain full power output at ambient temperatures up to 45°C. Its primary function is bidirectional power conversion among batteries, building loads, and the grid, making it suitable for commercial buildings, industrial facilities, and microgrid energy storage systems.

SolarBridge offers a matching AC integration cabinet that can accommodate up to four 135 kW converters per cabinet, forming a conversion capacity of 540 kW. System integrators can also expand the energy storage system configuration to approximately 1 MW by adding converter modules, to match the load and energy storage needs of different users. Compared with solutions using large centralized converters, where a failure may affect the operation of the entire energy storage station, this product adopts an independent module structure, allowing individual units to be replaced while the remaining modules continue to operate, reducing the impact of equipment maintenance on the overall system.

The device can operate with SolarBridge's independently developed AI energy management system, or work standalone or connect to third-party energy management software. The supporting system supports peak shaving and valley filling, time-of-use tariff optimization, photovoltaic self-consumption, and backup power management, and uses operational data to identify potential equipment faults and monitor system health. The company states that the relevant software stores customer data on servers within the United States and optimizes the charging and discharging strategies of energy storage equipment through operational analysis.

The Dallas manufacturing base is scheduled to receive production equipment in November 2026 and begin local assembly, functional testing, and software loading in the first quarter of 2027. The initial production line is planned for a monthly output of 1,000 to 1,500 units, with approximately 50 new jobs expected. According to the equipment capacity plan published by the company, the annual production capacity is up to approximately 2.5 GW. All shipped equipment must undergo functional and reliability testing. The company also plans to provide sample units to selected U.S. energy storage industry companies in December 2026 for product testing.

Domestic U.S. production and supply chain sourcing are important conditions for this product's market access. U.S. federal policy imposes restrictions on supply chains related to Foreign Entities of Concern (FEOC), and whether an energy storage project can qualify for the federal Investment Tax Credit depends on equipment sourcing and applicable regulatory requirements. SolarBridge plans to commission an independent law firm in early 2027 to certify its non-FEOC supply chain status, and is concurrently advancing the Federal Communications Commission equipment authorization process for this product.

Golden Gate is one of the first energy storage converter products SolarBridge plans to manufacture in the United States. The company also plans to launch the STU-P450 liquid-cooled string converter in the second quarter of 2027, with a rated power of 450 kW, using a 450 kW modular combination approach, which can be used in the future to build complete energy storage converter stations of up to 7.2 MW. This product will target the larger-scale grid-side energy storage market and align with the subsequent Phase II manufacturing base expansion plan near Dallas.